Sperm and eggs of tree frogs have 12 chromosomes. Skin cells of a tree frog contain how many chromosomes?
A
12
B
6
С
24
D
0

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

Cassandra made a venn diagram to compare and contrast the two stages of cellular respiration. which belongs in the area marked x? energy is released. oxygen is used up. glucose is broken down. carbon dioxide is used up.